/**
 * Copyright (c) 2006, 2007, 2008 Marwan Abi-Antoun, Jonathan Aldrich, Nels E. Beckman,
 * Kevin Bierhoff, David Dickey, Ciera Jaspan, Thomas LaToza, Gabriel Zenarosa, and others.
 *
 * This file is part of Crystal.
 *
 * Crystal is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Crystal is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Crystal.  If not, see <http://www.gnu.org/licenses/>.
 */
package edu.cmu.cs.crystal.flow;


/**
 * A normal label occurs from non-branching, non-exceptional control flow.
 * 
 * @author ciera
 *
 */
public class NormalLabel implements ILabel {
	private static final NormalLabel NORMAL_LABEL = new NormalLabel();

	private NormalLabel() {}
	
	/**
	 * 
	 * @return the singleton instance of the normal label
	 */
	static public NormalLabel getNormalLabel() {return NORMAL_LABEL;}
	
	public String getLabel() {return "";}

	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return "NORMAL";
	}
	
}
